公开(公告)号：US20220251056A1

公开(公告)日：2022-08-11

申请号：US17611057

申请日：2020-09-03

Applicant: LG CHEM, LTD.

Inventor： Dayoung LEE ,  Ki Jae LEE ,  Mooho HONG ,  Young Young HWANG ,  Youngwook SON ,  Daehyeon HWANG

IPC: C07D307/68 ,  C07D333/38 ,  C08G64/24 ,  C08G64/08 ,  C08G63/64 ,  C08G64/30

Abstract: Provided are a diol compound which may be used to prepare a polycarbonate having excellent weather resistance, hardness, heat resistance, transparency, impact resistance, etc. while having excellent mechanical properties, a polycarbonate prepared by using the same, and a preparation method thereof.

公开(公告)号：US20210292550A1

公开(公告)日：2021-09-23

申请号：US17262112

申请日：2019-08-19

Applicant: LG CHEM, LTD.

Inventor： Byoungkue JEON ,  Young In YANG ,  Daehyeon HWANG ,  Mooho HONG ,  Ki Jae LEE ,  Youngwook SON

IPC: C08L69/00 ,  C08K5/17 ,  G02B1/04 ,  C08G64/06

Abstract: The present disclosure relates to a polycarbonate resin composition exhibiting excellent heat stability and optical properties, and an optical molded article comprising the same. The polycarbonate resin composition includes polycarbonate resin; and [[4-(dimethylamino)phenyl]methylene] propanedioic acid dimethyl ester as a hindered amine UV absorber that selectively absorbs UVA having a wavelength of 420 nm or less.

公开(公告)号：US20190112421A1

公开(公告)日：2019-04-18

申请号：US16080995

申请日：2017-10-12

Applicant: LG CHEM, LTD.

Inventor： Ki Jae LEE ,  Jung Jun PARK ,  Moo Ho HONG ,  Hyong Min BAHN ,  Young Young HWANG

IPC: C08G64/08 ,  C08G64/18 ,  C08G64/22 ,  C08G77/392 ,  C08G77/448

Abstract: The present disclosure relates to a copolycarbonate having improved flowability while maintaining excellent impact strength at room temperature and low temperature, and a composition including the same.

公开(公告)号：US20190016855A1

公开(公告)日：2019-01-17

申请号：US16081017

申请日：2017-10-16

Applicant: LG CHEM, LTD.

Inventor： Jung Jun PARK ,  Young Young HWANG ,  Moo Ho HONG ,  Hyong Min BAHN ,  Ki Jae LEE

IPC: C08G64/08 ,  C08L69/00

Abstract: The present disclosure relates to a copolycarbonate having improved impact strength at low temperature and YI (Yellow Index) simultaneously, and a composition including the same.

公开(公告)号：US20170275456A1

公开(公告)日：2017-09-28

申请号：US15500242

申请日：2015-12-03

Applicant: LG CHEM, LTD.

Inventor： Young Young HWANG ,  Hyong Min BAHN ,  Jung Jun PARK ,  Moo HO HONG ,  Byoung Kyu CHUN ,  Un KO ,  Ki Jae LEE ,  Young Wook SON

IPC: C08L69/00 ,  C08G64/08

CPC classification number: C08L69/00 ,  C08G64/06 ,  C08G64/085 ,  C08G64/1666 ,  C08G64/1691 ,  C08G64/18 ,  C08G64/186 ,  C08G64/22 ,  C08G64/24 ,  C08G64/307 ,  C08G64/38 ,  C08G77/14 ,  C08G77/20 ,  C08G77/448 ,  C08J5/00 ,  C08J5/08 ,  C08K5/005 ,  C08K5/3475 ,  C08K5/42 ,  C08K5/521 ,  C08L51/04 ,  C08L69/005 ,  C08L83/04 ,  C08L83/06 ,  C08L83/10 ,  C08L2201/08 ,  C08L2201/10 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2205/035 ,  C08L2205/05 ,  C08L2205/06 ,  C08L2207/53 ,  C09K21/14 ,  C08L83/00

Abstract: The present invention relates to a copolycarbonate resin composition having improved mechanical properties such as impact resistance and chemical resistance while maintaining resin flowability, and an article including the same.

公开(公告)号：US20240002627A1

公开(公告)日：2024-01-04

申请号：US18038189

申请日：2022-07-14

Applicant: LG CHEM, LTD.

Inventor： Jeongbin LEE ,  Eunju PARK ,  Ki Jae LEE ,  Jungmoon BAE ,  Mooho HONG

IPC: C08J11/16 ,  C07C37/86

CPC classification number: C08J11/16 ,  C08J2369/00 ,  C07C37/86

Abstract: The present invention relates to a monomer composition for synthesizing recycled plastic, which comprises an aromatic diol compound, wherein a color coordinate b* is 0.1 to 1, wherein the aromatic diol compound yield is more than 75%, and wherein the monomer composition for synthesizing recycled plastic is recovered from a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.

公开(公告)号：US20210332185A1

公开(公告)日：2021-10-28

申请号：US17268271

申请日：2019-09-11

Applicant: LG CHEM, LTD.

Inventor： Young Young HWANG ,  Mooho HONG ,  Ki Jae LEE

IPC: C08G65/48 ,  C08G65/46 ,  C08G64/28 ,  C08G64/18 ,  C08G64/06 ,  C07C43/295 ,  C07D493/04

Abstract: Provided is a diol compound of the following Chemical Formula 1, a polycarbonate comprising the diol compound, and a method of producing the polycarbonate.

公开(公告)号：US20190016891A1

公开(公告)日：2019-01-17

申请号：US16068612

申请日：2017-10-17

Applicant: LG CHEM, LTD.

Inventor： Ki Jae LEE ,  Jung Jun PARK ,  Moo Ho HONG ,  Hyong Min BAHN ,  Young Young HWANG

IPC: C08L83/10 ,  C08L69/00

Abstract: The present invention relates to a polycarbonate resin composition capable of improving the fluidity of a copolycarbonate in which a polysiloxane structure is introduced into the main chain of the polycarbonate, and at the same time improving the fluidity thereof.

公开(公告)号：US20180044479A1

公开(公告)日：2018-02-15

申请号：US15555914

申请日：2016-12-27

Applicant: LG CHEM, LTD.

Inventor： Young Young HWANG ,  Hyong Min BAHN ,  Jung Jun PARK ,  Ki Jae LEE ,  Moo Ho HONG

IPC: C08G77/14 ,  C08G77/448 ,  C08G64/18

CPC classification number: C08G77/14 ,  C08G64/16 ,  C08G64/18 ,  C08G64/186 ,  C08G77/04 ,  C08G77/16 ,  C08G77/24 ,  C08G77/448 ,  C08J5/00

Abstract: The present invention relates to a novel polyorganosiloxane capable of producing a copolycarbonate having improved chemical resistance and flame retardancy while maintaining the intrinsic physical properties of a polycarbonate resin and to a copolycarbonate prepared by using the same.

公开(公告)号：US20170298221A1

公开(公告)日：2017-10-19

申请号：US15513926

申请日：2015-12-04

Applicant: LG CHEM, LTD.

Inventor： Young Wook SON ,  Moo Ho HONG ,  Ki Jae LEE ,  Jung Jun PARK

IPC: C08L69/00 ,  C08G64/06 ,  C08L83/04 ,  C08G64/08 ,  C08G77/14

Abstract: The present invention relates to a polycarbonate based resin composition and molded articles thereof, and more particularly, to a polycarbonate based resin composition of which impact strength, flowability (fluidity), and the like, are improved, and molded articles thereof.